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Abstract:

A measurement of the production cross section of top quark pairs (tt̄) in proton-proton collisions at a center-of-mass energy of 7 TeV recorded with the ATLAS detector at the Large Hadron Collider is reported. Candidate events are selected in the dilepton topology with large missing transverse energy and at least two jets. Using a data sample corresponding to an integrated luminosity of 35pb -1 , a tt̄ production cross section σtt̄=177±20(stat.)±14(syst.)±7(lum.)pb is measured for an assumed top quark mass of m t =172.5GeV. A second measurement requiring at least one jet identified as coming from a b quark yields a comparable result, demonstrating that the dilepton final states are consistent with being accompanied by b-quark jets. These measurements are in good agreement with Standard Model predictions. © 2011 CERN.

Registro:

Documento: Artículo
Título:Measurement of the top quark pair production cross section in pp collisions at √s=7TeV in dilepton final states with ATLAS
Autor:Aad, G. et al.
Este artículo contiene 3035 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 3035 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:Heavy quark production; Top physics; Total cross section
Año:2012
Volumen:707
Número:5
Página de inicio:459
Página de fin:477
DOI: http://dx.doi.org/10.1016/j.physletb.2011.12.055
Título revista:Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Título revista abreviado:Phys Lett Sect B Nucl Elem Part High-Energy Phys
ISSN:03702693
CODEN:PYLBA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v707_n5_p459_Aad

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Citas:

---------- APA ----------
(2012) . Measurement of the top quark pair production cross section in pp collisions at √s=7TeV in dilepton final states with ATLAS. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 707(5), 459-477.
http://dx.doi.org/10.1016/j.physletb.2011.12.055
---------- CHICAGO ----------
Aad, G. "Measurement of the top quark pair production cross section in pp collisions at √s=7TeV in dilepton final states with ATLAS" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 707, no. 5 (2012) : 459-477.
http://dx.doi.org/10.1016/j.physletb.2011.12.055
---------- MLA ----------
Aad, G. "Measurement of the top quark pair production cross section in pp collisions at √s=7TeV in dilepton final states with ATLAS" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 707, no. 5, 2012, pp. 459-477.
http://dx.doi.org/10.1016/j.physletb.2011.12.055
---------- VANCOUVER ----------
Aad, G. Measurement of the top quark pair production cross section in pp collisions at √s=7TeV in dilepton final states with ATLAS. Phys Lett Sect B Nucl Elem Part High-Energy Phys. 2012;707(5):459-477.
http://dx.doi.org/10.1016/j.physletb.2011.12.055